[A coherence analysis of the electrical activity of the rabbit brain with a hunger dominant].

Hunger dominant was created in daily (for 24 hours) food deprived rabbits. The presence of summation was judged by the appearance of the swallowing of the chewing movements in response to sound. At creation of the hunger dominant the coherence (Cog) of the electrical activity of the sensorimotor, frontal, and parietal areas of the cerebral cortex raised. There established the differently directed Cog of the potentials of the lateral (LH), medial (VmH) hypothalamus and the cortex, especially regular in the delta- and the theta-bands. Cog between the potentials of the LH and the cortex lowered, and Cog between that of the VmH and the cortex, on the contrary, raised. There appeared a certain mosaic of coherent connections of the hypothalamic electrical processes: Cog between the potentials of the LH and the VmH raised and Cog between that of the medial and lateral preoptic areas lowered.